My idea: Eshae class (Rihannsu for fierce), also known, in the Federation, as the Fury class (referring to mythological furies, the Greek/Roman embodiment of vengeance.)
Eshae (pronounced eh-SHY) would be used in the same sense as Romulan Warbirds are called the D'deridex class. Fury of course would be equivalent to Warbird.